On Thu, Aug 13, 2015 at 12:52:26PM -0500, Michael Hennebry wrote: > On Wed, 12 Aug 2015, Jonathan Billings wrote: > >Its not ‘autofs’ specifically (which is a simple thing) but udev > talking to udisks, allowing your login session to use udisks to > mount the volumes if allowed by PolicyKit, speaking through dbus. > > How do I get the ask-first behavior? > How do I tell what makes Lifestudio special? > When I plug in an SD card through a USB adapter, > something asks what I want to do and lists options. > > In case it helps: > [root at localhost sata400-12-homes]# find / -name '*autofs*' > /lib/modules/2.6.32-504.3.3.el6.x86_64/kernel/fs/autofs4 As I said earlier, this behavior isn't autofs. Don't blame autofs. autofs is a nice tool. autofs is easy to understand, enable and disable. To disable the auto-mounting of USB disks via udisks, you'd need to set up a custom udev rule. Of course, it's hard to know which existing udev rule is catching your disk, as you said, behavior is different with an SD card than with a USB disk. For CentOS6, the udev configuration for udisks is: /lib/udev/rules.d/80-udisks.rules ... while in CentOS7, the udisks2 udev config is: /usr/lib/udev/rules.d/80-udisks2.rules You'd put the custom rule in /etc/udev/rules.d/. These rules depend on the device name, vendor and model ID, drivers used, etc. You'd have to write a custom udev rule either for that particular device, or something more generic for that class of device. You might want to consider just disabling udisks{,2} entirely, if you don't use the features. -- Jonathan Billings <billings at negate.org>